Radar shows angle and range between a reference point and the target echos from scattered in the scene that is being iluminated.
It is not a requirement to show RADAR readings in Illinois.
Iowa
Radar displays show where precipitation is they also show the winds within thunderstorms which help them see rotation in a thunderstorm to pick out where a tornado is possibly forming.
Nope. The radar is only a confirmation of the officer's visual estimation.
speed of movement of the objects detected.
speed of movement of the objects detected.
The radar shows the position and the distance of an object.
All they have to prove is that it was within manufacturer's specifications and calibrated properly, so when stopped by police, they don't need to show you the radar gun, when you ask to see it. An officer does not, and more than likely, will not show you what speed you were going on there radar. That issue would come up in court.
Walter Eugene O'Reilly, "Radar," the Company Clerk in the TV show and movie Mash, was from Ottumwa, Iowa.
Walter Eugene "Radar" O'Reilly was on the show for the first 7 seasons. [out of 11 seasons].
vaguely
No they do not. There is no state where it is a legal requirement.